Design of soluble semiconductors and study on their device functionality

系统地研究了溶液可加工的有机-无机杂化钙钛矿的电子结构、掺杂水平、输运性质。对新型掺杂方法的设计和有机半导体的器件结构也进行了研究。对于锡-碘化物体系，本研究阐明了其高电导率的原因。对于有机半导体，提出了接触界面掺杂的新概念，并研究了界面处的电子态。

Systematic investigation of the electronic structure, doping level, transport properties of the solution processable organic-inorganic hybrid perovskites was performed. Design of the novel doping method and device construction including organic semiconductors was also examined. As for the tin-iodide system, the origin of the high conductivity was clarified by this study. As for the organic semiconductors, novel concept of doping at the contact interface was proposed, and the electronic state at the interface was studied.